Related formswit·less·ly, adverbwit·less·ness, noun
Examples from the Web for witless
Sorry, but the endless apologies from hapless celebrities and witless pundits add up to a big zero.
Have I time for the witless, when—but I may have been deceived.Wilderness of Spring|Edgar Pangborn
Certes he would be a witless creature who would willingly adore either pictures or images of wood or stone.Of the Just Shaping of Letters|Albrecht Drer
To my mind it was a poor sort of jest, witless and contemptible.Essays on Paul Bourget|Mark Twain (Samuel Clemens)